even then, you know, over the summer we heard the chairman of the joint chiefs, admiral mike mullen, we heard leon panetta, the director of the cia, all say the same thing which is the sanctions may help give the united states some leverage, but it's not going to -- the sanctions alone will not force the iranian government, they believe to fundamentally reassess the value of the nuclear program. there are some who think it might lead them to speed up the nuclear program. >> the other point here is that recent reporting is that the iranians may have had some technical challenges, let's say, and that there may be more time and that the americanses may have persuaded the israelis, for instance that there is more time, at least nine months to a year before there is a real -- a real issue that needs to be confronted or should be confronted from their perspective. david, thank you very much. we'll be watching all of this up close at the united nations next week when there will be a major speech, of course, from the president, hillary clinton, and all of the members of the countries that ar